It's been awhile since I have had calculus and dealing with differential equations and initial value problems. Looking for some help with some easy problems.

Find the solution of the given initial value problem.

(1) $\displaystyle y' + 2y = te^{-2t}$, $\displaystyle y(1)=0$

(2) $\displaystyle t^3y' + 4t^2y = e^{-t}$, $\displaystyle y(-1)=0, t < 0$

A walkthrough of these would be greatly appreciated. Thanks in advance